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Hadamard matrices of Williamson type
Published online by Cambridge University Press: 09 April 2009
Abstract
Let p be a prime ≡ 1 (mod 4) and put v = p(p + 1)/2. It is proved in this paper that there exist four symmetric circulant matrices A, B, C, D of order υ such that where Iv is the identity matrix of order υ. This result is used to construct Hadamard matrices of order 4υ that are of the type originally prescribed by Williamson.
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- Copyright © Australian Mathematical Society 1976
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